Associations between accelerometer-measured physical activity and body fatness in school-aged children

Table 3 Associations between physical activity of different intensities and body fatness indicators Z-scores in girls (N = 209)

	Fat mass (kg)			Fat mass (%)			Fat mass index (kg · m⁻²)			Visceral adipose tissue^a (cm²)
	β^b	(95% CI)	P-value	β^b	(95% CI)	P-value	β^b	(95% CI)	P-value	β^b	(95% CI)	P-value
LPA^a
Model 1	−0.03	(–0.56, 0.50)	0.901	−0.06	(–0.59, 0.47)	0.817	0.10	(–0.43, 0.64)	0.699	−0.30	(–0.83, 0.23)	0.268
Model 2	0.47	(–0.03, 0.97)	0.062	0.15	(–0.40, 0.69)	0.596	0.33	(–0.21, 0.88)	0.229	−0.03	(–0.57, 0.51)	0.903
Model 3	0.41	(–0.09, 0.92)	0.107	0.07	(–0.49, 0.62)	0.812	0.27	(–0.28, 0.82)	0.332	−0.10	(–0.64, 0.45)	0.731
MVPA^a
Model 1	−0.37	(–0.65, –0.09)	0.010	−0.46	(–0.74, –0.18)	0.001	−0.44	(–0.72, –0.16)	0.002	−0.32	(–0.60, –0.04)	0.026
Model 2	−0.47	(–0.72, –0.22)	<0.001	−0.51	(–0.78, –0.23)	<0.001	−0.48	(–0.76, –0.21)	<0.001	−0.38	(–0.65, –0.10)	0.008
Model 3	−0.46	(–0.71, –0.21)	<0.001	−0.49	(–0.76, –0.22)	<0.001	−0.47	(–0.75, –0.20)	0.001	−0.36	(–0.64, –0.09)	0.010
VPA^a
Model 1	−0.04	(–0.15, 0.07)	0.508	−0.08	(–0.19, –0.04)	0.181	−0.05	(–0.16, 0.06)	0.367	−0.06	(–0.18, 0.06)	0.349
Model 2	−0.06	(–0.15, 0.04)	0.273	−0.09	(–0.20, 0.02)	0.122	−0.06	(–0.17, 0.05)	0.269	−0.07	(–0.19, 0.05)	0.228
Model 3	−0.05	(–0.15, 0.05)	0.287	−0.09	(–0.20, 0.03)	0.130	−0.06	(–0.17, 0.05)	0.282	−0.07	(–0.18, 0.05)	0.238

Model 1 – unadjusted (raw) model
Model 2 – model 2 was adjusted for age and body height
Model 3 – model 3 was adjusted for model 2 and sedentary time
CI confidence interval, LPA light physical activity, MVPA moderate-to-vigorous physical activity, VPA vigorous physical activity
^aValues were transformed to natural logarithms before analysis
^bβ gives the regression coefficient of the standardized values (Z-score) for each variable

ISSN: 1347-4715